Asthma in Women, Asthma in Pregnancy (cont.)
Although open windows can allow pollens and other triggers into the house,
there may be a trigger in the house, such as smoke, that necessitates opening a
window.
Pets with fur should be kept out of the bedroom. If pets
are to be kept in the household, they should be bathed twice weekly to reduce
the amount of allergens (substances with potential to cause asthma or allergy
symptoms). An asthmatic may be allergic not only to the animal itself but also
to danders or
pollens that the pet carries in from the outside.
Following these recommendations down the last detail would be unrealistic, of
course, but at least they are guidelines. Additionally, perhaps some of the
chores that are associated with asthma triggers can be done when the person with
asthma is out of the house.
Although these recommendations
have not been proven to be totally effective (indeed some research finds these
measures to not be helpful at all), they are inexpensive and without side
effects compared to medications, and therefore are considered standard measures
for consideration by every asthma. Physicians generally counsel all asthmatic
patients regarding these measures, if they are found to be allergic by skin or blood testing.
Do Filters Help?
High-energy particulate
absorption (HEPA) filters have recently gained in
popularity. They are filters that remove many allergens from the air. There is
not complete proof that these filters should be used by everyone with asthma.
Treatment With Medication: General Considerations
Key point:
The risk of asthma that is not controlled in pregnancy is
greater than the risk of using medication! The baby needs oxygen!
There are several kinds
of asthma medications. Generally, they come in two categories: fast-acting
medication (called rescue medication, used for immediate relief of symptoms) and
medication (maintenance therapy) that is used regularly
each day to prevent the need for the rescue medication. Preventive asthma
medications are not addictive, even when used for years!
People who really know how to use their asthma medications
and how to alter them with changes in their asthma symptoms not only feel better
about their asthma, but research is also beginning to prove that they also have
more healthy days than people who just visit the doctor at regular intervals.
Allergy shots (Immunotherapy) is effective for most people with hayfever. It
clearly also helps some people with asthma as well. Those asthmatics likely to
respond are children, highly allergic individuals and those with poorly
controlled hayfever or sinusitis.
The latest
treatment recommendations are based on the National Asthma Education and
Prevention Program's Report of the Second Expert Panel on the Guidelines for the
Diagnosis and Management of Asthma, published in 1997 (2). These treatment
guidelines, sponsored by the National Heart, Lung, and Blood Institute, give
more emphasis to the use of anti-inflammatory medications, and to possible
prevention of asthma, than did prior guidelines. The plan is called a "step
approach". This means that if one medication does not do the job, the dose or
frequency of doses is raised and other medication is added, and then as the
asthma is better controlled, the medications are decreased in a "step down". The
2 generally categories of medication are controller medications (maintenance
medications) and reliever medications (rescue medications).
A. Rescue Medication: Inhaled for Quick Relief
For acute, meaning immediate, relief, medication that dilates (opens) the
airways is used. These medications, b-agonists, are usually taken in inhaled
forms, called metered dose inhalers (MDI's). Examples include albuterol and
metaproterenol. There are few side effects of these inhaled bronchodilator
medications. Some people may get palpitations, a sense of the heart beating
fast, or a sense of feeling "jittery". Some people seem to be more sensitive
to those side effects than others. Some people may notice this type of side
effect only occur at high doses of the medications. This quick relief medicine
should always be carried in case of unexpected need. Often people will be told
to keep these medications scattered in easy-to-find locations, like purses or
pockets, desk at work, or glove compartment.
B. Maintenance Therapy: Inhaled for Long-Term Control
Because asthma's underlying cause is thought to be inflammation (swelling
in the airways), anti-inflammatory therapy is the basis for prevention of acute
attacks (exacerbations). Daily preventive (maintenance) medication may be needed
if people cough, wheeze, or have chest tightness more than once weekly, if
night-time asthma wakes them up, if they have many asthma attacks, or if they
are using asthma rescue medication daily.
Therapy consists of
inhaled corticosteroids. Corticosteroids are drugs that if taken orally can have
significant side effects over the long-term, although these are not the same
drugs that became popular with body-builders. Therefore, inhaled forms of the
corticosteroids were developed in the form of MDI's. Examples include
fluticasone, beclomethasone, and budesonide. Although it is known which of these
is the most potent compared to the others (fluticasone), studies actually
comparing use of the medications are not very numerous. Steroids are
anti-inflammatory, so that they decrease airway swelling, lessen mucus, and
decrease the overly active "twitchy" problem in the airways.
There are no immediate side
effects of steroid MDI's that a person would
feel. Thrush, a whitish yeast infection
on the tongue, can occur as a side effect, and is minimized by rinsing out the
mouth with water after use and using a "spacer" device that attaches to the
inhaler. Spacers are available by prescription and help the medication get into
the lungs instead of depositing in the mouth. Based on the fact that use of oral
steroids can put people at risk of osteoporosis (brittle bones), there is some concern that inhaled steroids might
also decrease bone density, and as a consequence cause fractures later on. The
research so far is regarding this possible side effect is controversial, but
suggests that this possible side effect is greater with higher potency or higher
doses of inhaled steroids. Hopefully the exact degree of risk with different
preparations and doses will become clearer in the future. For the time being,
consulting with a physician that adequate calcium intake, vitamin D intake, and
exercise are being achieved for bone health is a wise idea.